1. NO EPIDERMAL INVOLVEMENT
   1. Perivascular only-Lymphocytes predominate
   2. Perivascular and Interstitial
   
   
2. INTERFACE
   1. Vacuolar
   2. Lichenoid
   
   
3. BALLOONING
   1. Ballooning mostly
   2. Interface
   3. Psoriasiform
   
   
4. SPONGIOTIC
   1. Spongiotic only
   2. Psoriasiform
   3. Lichenoid
   4. Psoriasiform Lichenoid
   
   
5. PSORIASIFORM
   1. Psoriasiform only
   2. Lichenoid